From 48bb9541f996deba1333f18f295806a32ce2c773 Mon Sep 17 00:00:00 2001
From: Arkadiy Kukarkin <parkan@gmail.com>
Date: Wed, 4 Feb 2026 10:39:22 +0100
Subject: [PATCH] dedupe fields in storage types codegen

---
 handler/storage/gen/main.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/handler/storage/gen/main.go b/handler/storage/gen/main.go
index f86af1a6..1704a054 100644
--- a/handler/storage/gen/main.go
+++ b/handler/storage/gen/main.go
@@ -165,6 +165,20 @@ func main() {
 					Description: description,
 				})
 			}
+			// dedupe fields by name, keeping last occurrence (provider-specific overrides generic)
+			seen := make(map[string]int)
+			for i := len(fields) - 1; i >= 0; i-- {
+				if _, exists := seen[fields[i].Name]; !exists {
+					seen[fields[i].Name] = i
+				}
+			}
+			var dedupedFields []Field
+			for i, field := range fields {
+				if seen[field.Name] == i {
+					dedupedFields = append(dedupedFields, field)
+				}
+			}
+			fields = dedupedFields
 			typeName := backend.Prefix + upperFirst(providerOptions.Provider) + "Config"
 			t := Type{
 				Name:   typeName,